title: The effects of hydrogenous and nonhydrogenous filters on the quality of a p(66)Be(49) neutron beam.
mesh_terms: D000535:Aluminum; D007854:Lead; D009502:Neutrons; D011095:Polyethylenes; D011138:Polytetrafluoroethylene; D011882:Radiotherapy, High-Energy; D013232:Steel; D013679:Technology, Radiologic
chemical_list: D011095:Polyethylenes; D013232:Steel; D007854:Lead; D011138:Polytetrafluoroethylene; D000535:Aluminum